It looks like Harry's coming full circle in his emotions. His giddy, and somewhat silly self emerging from the dark, and it's confusing people...but this time it's the slytherins and not his closest friends who have gotten used to it by now.
And now the closet girl is revealed. Howdy Daphne. So arranged marriage and the like, so ?Blaise isn't interested in Daphne and Daphne is apparently extremely interested in Harry. Her sister remains an engima to me as she shifts from suspicious to child-like in a heartbeat, but that makes her unique.
Good job overall.